Nz's Ancient Kauri Yields Major Scientific Discovery - Nz Herald

NZ's ancient kauri yields major scientific discovery - NZ Herald

NZ's ancient kauri yields major scientific discovery

18 Feb, 2021 03:35 PM5 minutes to read

The trunk of an ancient kauri tree from Ngāwhā, Northland. Swamp kauri has revealed more about a mysterious event 42,000 years ago. Photo / Nelson Parker
NZ Herald


Secrets hidden within ancient swamp kauri have revealed
a temporary breakdown of Earth's magnetic field 42,000 years ago,
prompting global environmental change and mass extinctions.

This dramatic turning point in Earth's history was triggered
by a reversal of Earth's magnetic poles and changing solar winds.

"For the first time ever, we have been able to precisely date the timing and environmental impacts of the last magnetic pole switch,"
said Professor Chris Turney, a co-lead author
of a new study just published in major journal Science.

The episode has now been dubbed the "Adams Transitional Geomagnetic Event",
or "Adams Event" for short - a tribute to science fiction writer Douglas Adams,
who wrote in The Hitchhikers Guide to the Galaxy that "42" was the answer to life, the universe, and everything.
The findings were made possible with ancient New Zealand kauri trees, which have been preserved in sediments for more than 40,000 years.
Using the ancient Northland trees, Turney, of the University of New South Wales, and his Kiwi and Australian colleagues were able measure, and date, a spike in atmospheric radiocarbon levels caused by the collapse of Earth's magnetic field.

Cross-sections from several swamp kauri in Niwa's archive were analysed
by Dr Andrew Lorrey to determine their age.

"These kauri trees also lived during the time period leading into the Adams Event and provide a baseline of normal radiocarbon levels prior to the unprecedented rise associated with the Adams Event," said Lorrey, a principal scientist at Niwa.

Using radiocarbon dating, the team tracked the changes in radiocarbon levels
during the magnetic pole reversal.

Sequential blocks of wood consisting of 40 annual rings were extracted from four ancient kauri logs and dated by a process called high-precision liquid scintillation counting.

Professor Alan Hogg, director of the University of Waikato Radiocarbon Dating Laboratory, said this technique provided the highest possible accuracy
for samples of this age.

The kauri radiocarbon data was charted alongside annual tree ring growth data, which acted as an accurate, internal timestamp.
While scientists already knew the magnetic poles

temporarily flipped around 41-42,000 years ago

- something known as the Laschamps Excursion

- they didn't know exactly how it impacted life on Earth

- if at all.
As we know it today, the magnetic north pole doesn't have a fixed location.

It usually wobbles close to the North Pole - the northern-most point
of Earth's axis - over time due to dynamic movements within the Earth's core,
just like the magnetic south pole.

Sometimes, for reasons that aren't clear, the magnetic pole movements
are drastic.

Around 41,000 to 42,000 years ago the north and south pole
swapped places entirely.

"The Laschamps Excursion was the last time the magnetic poles flipped,"
Turney said.

"They swapped places for about 800 years before changing their minds
and swapping back again."

Until now, scientific research has focused on changes that happened
while the magnetic poles were reversed, when the magnetic field
was weakened to about 28 per cent of its present-day strength.

But according to this new research, the most dramatic part was the lead-up
to the reversal, when the poles were migrating across the Earth.

"Earth's magnetic field dropped to only 0-6 per cent strength
during the Adams Event," Turney said.

"We essentially had no magnetic field at all
- our cosmic radiation shield was totally gone."
In the study, the researchers were able to detail how Earth's atmosphere changed over the period via the kauri tree-ring radiocarbon data and other data
aligned to it.

They used the newly created kauri radiocarbon timescale and other records
from sites across the Pacific with global climate modelling to tie large shifts
in major wind belts, tropical climate and glacier activity back to the Adams Event.

One of their first clues was that megafauna across mainland Australia
and Tasmania went through simultaneous extinctions 42,000 years ago.

The paper suggested that the Adams Event could explain a lot of other evolutionary mysteries, like the extinction of Neanderthals and the sudden widespread appearance of figurative art in caves around the world.

These findings come two years after a particularly important ancient kauri tree was uncovered at Ngāwhā, Northland.

The massive tree - with a trunk spanning over two and a half metres
- was alive during the Laschamps.

"Like other entombed kauri logs, the wood of the Ngāwhā tree is so well preserved that the bark is still attached," said Dr Jonathan Palmer, of the University
of New South Wales.

This new ancient kauri timescale has helped to reveal what happened during a dramatic period in Earth's history. The team were able to reconstruct a chain of environmental and extinction events using climate modelling and the kauri records.

"The more we looked at the data, the more everything pointed to 42," Turney said.

"It was uncanny. Douglas Adams was clearly on to something, after all."

https://www.nzherald.co.nz/nz/nzs-ancient-kauri-yields-major-scientific-discovery/IH7WH7R4LHAO6KAZOZ

 

42000 years/84 years =500 cycles

 

1. 967 Salt Lake Tribune: Dire Famine Forecast by 1975, Already Too Late
   
   1969 NYT: "Unless we are extremely lucky, everyone will disappear in a cloud of blue steam in 20 years. The situation will get worse unless we change our behavior."
   
   1970 Boston Globe: Scientist Predicts New Ice Age by 21st Century said James P. Lodge, a scientist at the National Center for Atmospheric Research.
   
   1971 Washington Post: Disastrous New Ice Age Coming says S.I. Rasool at NASA.
   
   1972 Brown University Letter to President Nixon: Warning on Global Cooling
   
   1974 The Guardian: Space Satellites Show Ice Age Coming Fast
   
   1974 Time Magazine: Another Ice Age "Telling signs everywhere. Since the 1940s mean global temperatures have dropped 2.7 degrees F."
   
   1974 "Ozone Depletion a Great Peril to Life" University of Michigan Scientist
   
   1976 NYT The Cooling: University of Wisconsin climatologist Stephen Schneider laments about the "deaf ear his warnings received."
   
   1988 Agence France Press: Maldives will be Completely Under Water in 30 Years.
   
   1989 Associated Press: UN Official Says Rising Seas to 'Obliterate Nations' by 2000.
   
   1989 Salon: New York City’s West Side Highway underwater by 2019 said Jim Hansen the scientist who lectured Congress in 1988 about the greenhouse effect.
   
   2000 The Independent: "Snowfalls are a thing of the past. Our children will not know what snow is," says senior climate researcher.
   
   2004 The Guardian: The Pentagon Tells Bush Climate Change Will Destroy Us. "Britain will be Siberian in less than 20 years," the Pentagon told Bush.
   
   2008 Associate Press: NASA Scientist says "We're Toast. In 5-10 years the Arctic will be Ice Free"
   
   2008 Al Gore: Al Gore warns of ice-free Arctic by 2013.
   
   2009 The Independent: Prince Charles says Just 96 Months to Save the World. "The price of capitalism is too high."
   
   2009 The Independent: Gordon Brown says "We have fewer than 50 days to save our planet from catastrophe."
   
   2013 The Guardian: The Arctic will be Ice Free in Two Years. "The release of a 50 gigaton of methane pulse" will destabilize the planet.
   
   2013 The Guardian: US Navy Predicts Ice Free Arctic by 2016. "The US Navy's department of Oceanography uses complex modeling to makes its forecast more accurate than others.
   
   2014 John Kerry: "We have 500 days to Avoid Climate Chaos" discussed Sec of State John Kerry and French Foreign Minister Laurent Fabious at a joint meeting.
   
   Let's Review 50 Years Of Dire Climate Forecasts And What Actually Happened | ZeroHedge
   
   https://www.zerohedge.com/political/lets-review-50-years-dire-climate-forecasts-and-what-actually-ha
   
   
   in 1984
   

   • susan lynne schwenger
   • knew the grand cycle restarted in 2013, last full moon of december 17 dec 2013

   ​
   
   
   "THE next ICE AGE will OCCUR in sync with 16th December 2013,
   
   end time of The Grand Cycle of Pacha & Macha
   and, 17th December 2013 -The Start Time of The Grand Cycle of Pacha iNTi,
   they occur, once every 104,000 years, which is 4 cycles of 26,000 ancient years"
   - Susan Lynne Schwenger
   Predicted 30-MAY-2010
   
   "An ice age occurs once every 104,000 ancient years
   if 360 days is the length of an ancient year
   there are 26,000 ancient years x 4 cycles = 104,000 ancient years
   the importance of our calendar calibrations,
   are, as follows:
   in 9,360,360 ancient days/360 ancient days = 26,001 ancient years
   or (5 major cycles x 13 minor cycles x 144,000 days) + (6 seasons x 60 days=360)
   =9,360,360 ancient days
   in 9,360,000 ancient days/360 ancient days= 26,000 ancient years
   The ancient day-record-time-wisdom keepers, were out by 360 ancient days
   16th December 2013, is the end of The Macha (9,360,000) & Pacha (360) Grand Cycle
   17th December 2013, is the start of The Pacha iNTi (9,360,000) Grand Cycle" Susan Lynne Schwenger - 30 May 2010
   ​
   
   
   TONY BERMANSEDER & SUSAN LYNNE SCHWENGER
   
   did very specific work on the calendars / and, alignment of grand / great cycles etc;
   
   THE ANSWER to Ancient Calendars & Mayan Timeline Encodings Of The Calendars
   
   THE ANSWER to Ancient Calendars & Mayan Timeline Encodings Of The Calendars
   -BERMANSEDER & SCHWENGER | Page 13 | Cosmogenesis - Library of Akbar Ra in Alexandria Thuban (cosmosdawn.net)
   
   
   
   https://cosmosdawn.net/forum/thread...he-calendars-bermanseder-schwenger.93/page-13​